Most of you will have found yourself at least once in front of a Captcha that, in order to let you proceed to a website, you have to answer a simple mental question.
This is the strange world of computers where you will have to prove the obvious. That you are a human and not a robot!
But what does it matter if someone thinks you're a robot? Why is this a problem? And how do you actually send a robot out there to walk around and automatically solve all these weird questions?
What is Captcha?
CAPTCHA (pronounced captcha) is an acronym for the words “Completely Automated Public Turing test to tell Computers and Humans Apart” and stands for “Completely Automated Public Turing Test to Tell Computers and Humans Apart”.
It is a challenge-response test used to determine whether the user is a bot or a human. It is used as a safe way to detect malicious bot behavior, block it and protect a website from any harm in terms of security and privacy.
Captchas provide challenges that are difficult for a bot to solve but easy for a human to understand within a second. Examples: Identifying jumbled letters, solving a simple math operation, clicking on a specific area to identify a specific image, etc.
The main purpose behind captchas is to ask questions or give challenges that a bot cannot complete, but a human can solve relatively quickly. The aim behind this is to protect the website or application from spam or password cracking with the help of simple tests.
Thus, captchas are used to maintain the accuracy of polls, prevent false click counting, protect against false comments, limiting registration for various services and more.
What are the Captcha types?
You may find different types of captchas that each have their own format. Let's see what they are:
- Text-based Captchas
- Captchas based on an image
- Captchas based on a sound
- Math problems or word problems
- Sign in to social media, for example, using Google, LinkedIn or Facebook.
- ReCaptcha
- Captcha based on time
- Honeypot
- Invisible ReCaptcha
What are the applications of Captchas?
Captchas have various applications for security, privacy, etc., but also for protecting your website from any kind of harm. Some of the areas where Captchas are used include (indicative list):
- Spam mitigation
- Online voting
- Web registration
- Protection of confidential information on websites
- Prevent code dictionary attacks
- Smart cards
- SMS spam filtering
- Phishing Prevention
- Prevention Sybil attack
- VoIP spam prevention
- Online games
- Prevent bots on social networks
- Search engine bots
- Prevention of worms and spam
What are Captcha solving services?
Captcha solving services are software systems for automatically solving captchas. They use two different methods to solve a captcha:
OCR solutions: In this, captcha solving is done automatically using Optical Character Recognition technology.
Human-based solutions: Here, people work as captcha solvers who are constantly online. They process the texts and send them back to you.
To use the captcha solving services that exist on the web, you need to register and integrate their API in your application and send your captchas to get the answer in text form.
Best Captcha Solving Services
In contrast to the existence of Captchas, their auto-solving services are useful for various purposes such as web crawling, automation, marketing, SEO, and more.
You have the possibility by paying money of course, to add a captcha solving function to your applications and thus bypass the restrictions. Let's take a look at the best Captcha solving APIs
2 Captchas
2Captcha has an API to automate the solving process which you should integrate into your software.
This API is based on HTTP and supports HTTP and HTTPS protocols. You will have to pay for already solved CAPTCHAs. In addition, you will get anti CAPTCHA tool to solve reCAPTCHA v2.
CapSolver
Capsolver's automatic captcha solver has a success rate of 99,15% according to its makers. It can answer more than 10 million captchas every minute.
Its prices vary depending on the type of cartcha you are asked to solve.
Death By Captcha
Το Death By Captcha είναι ένα υβριδικό system που αποτελείται από το προηγμένο σύστημα OCR. Ο υπολογισμένος μέσος χρόνος απόκρισης για κανονικά CAPTCHA κειμένου είναι 9 δευτερόλεπτα και το ποσοστό ακρίβειας είναι μεγαλύτερο από 90%.
You can have a free 7-day trial to understand how it works and the accuracy rate you get.
BypassCaptcha
One of the oldest services as it dates back to 2008.
Its programs start at $14 for solving 2000 captchas.
EndCaptcha
EndCaptcha can solve captchas in an average time of 7 seconds and is considered one of the fastest on the market.
You can try it for free for the first 1000 captchas and if that covers you, the cheapest package is $11,99 for 3000 captchas.
BestCaptchaSolver
Best Captcha Solver offers 100% human recognition so the team behind the service can solve your requests within seconds.
Probably one of the cheapest services.
AZcaptcha
AZcaptcha is an automated captcha solving API that offers a highly accurate and inexpensive OCR solution.
You don't pay for each captcha and you are charged by the month, regardless of the quantity. The average solve rate for regular captchas is around 95% and more than 90% for reCaptcha v2 and v3.
Anti-Captcha
Another old service, with a year ofmovementin operation since 2007. It relies on its human resources scattered all over the world to solve the Captchas you will encounter.
Pay-as-you-go pricing options give you the flexibility to pay per captcha. Other pricing options start at $0,5 per 1000 images.
CAPTCHAs
CAPTCHAs is one of the most accurate and fastest captcha auto-recognition API service providers.
Pricing per month, but with daily limits on the quantities for the cheap packages.
TrueCaptcha
Get a SaaS-based solution to solve your Captchas with TrueCaptcha. Upload your captcha, let the AI process it and get the solution in text format.
Get 100 free requests per day. The cheapest package costs $0,33 per 1000 captchas.
